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All Journal Jurnal Teknik Industri Jurnal Gamma Rekayasa Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering International Journal of Community Service Learning Journal of Community Service and Empowerment Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya
Mulyono, M
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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AIR CONDITIONING LOAD AND ANALYSIS CALCULATION OF AIR DISTRIBUTION IN VEHICLE CABINS BRIDGE MAINTENANCE INSPECTION Mulyono, Mulyono; Sadewa, Maulana; Soegiharto, Achmad Fauzan Hery; Restu, Firdausa Retnaning
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.2217

Abstract

Cabin comfort is essential for an inspector to work focusly and produce valid data in a bridge maintenance vehicle. The use of an air conditioner (AC) in the cabin of this vehicle is a concern for the inspector's comfort while supervising the bridge. Choosing an inappropriate AC can result in excessive energy consumption or inadequate thermal comfort. Furthermore, the transparent windows and windshields of glass elevate the temperature and allow sunlight to invade the room. Consequently, it intensifies the cooling demand. Considering this situation, this study focuses on calculating the cooling load in the cabin and simulating the thermal performance using computational fluid dynamics (CFD). The simulations were conducted using Ansys 2023 software, with a runtime of 4 minutes and 2,400 iterations. It is to achieve a cabin temperature within the comfort range of 22–26°C. The cabin is designed for two inspectors. At an airflow velocity of 3 m/s, the simulation yielded a maximum temperature of 40°C and a minimum of 21.13°C. Reducing the airflow to 2 m/s resulted in a range of comfortable temperatures for the cabin. In conclusion, the simulation results fulfill the criteria and confirm that an airflow velocity of 2 m/s is sufficient to maintain the comfortable temperature in the cabin.
Pengaruh Variasi Komposisi Bahan Bakar (Ethanol-Pertalite) terhadap Performansi pada Sepeda Motor Matic Vario 125cc Mulyono, M; Hendaryati, Roro Heni; Firdaus, Shodik Nur
Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri 2019: Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Ethanol atau bioethanol salah satu sumber energi yang dapat diperbaharui, sehingga sangat baik untuk dimanfaatkan sebagai bahan bakar alternative untuk kendaraan bermotor. Negara berkembang seperti Brasil dan Amerika Serikat, sudah banyak menggunakan campuran etanol dan bensin untuk kendaraan bermotor. Penelitian ini bertujuan untuk mendapatkan variasi komposisi bahan bakar (ethanolpertalite) terhadap performansi sepeda motor matic 125cc. Metode yang digunakan dalam penelitian ini adalah eksperimen yaitu melakukan pengujian secara langsung tentang torsi, daya dan emisi gas buang. Penelitian ini menggunakan bahan campuran pertalite dan (25%, 35%, 45%, 55%) ethanol. Hasil penelitian menunjukkan torsi dan daya maksimal diperoleh pada campuran 55% etanol. Penambahan etanol pada pertalite dapat mengurangi kadar emisi CO, HC, dan CO2, sedangkan emisi O2 tidak mengalami penururan karena kelebihan kadar oksigen pada ethanol.
Co-Authors Achmad Fauzan Hery Aldiansyah Wahyu Pratama Ali Saifullah Billy Muhammad Candra Dwi Febrian Daryono Daryono Daryono Desrina, R Fauzi Ahmad Muda Firdaus, Shodik Nur Hendaryati, Roro Heni Heni Hendaryati Husamah Husamah Iin Hindun Ilmi, Achmad Zidan Bahrul M Irkham Mamungkas Mohammad Jufri Nurwidodo, Nurwidodo Restu, Firdausa Retnaning Sadewa, Maulana Wibisono, MS Yepy Komaril Sofi’i